Senior Android Developer

Lokki Henkilöstöpalvelut Oy; Helsinki; Hybrid; EUR 70,000 - 100,000; Full time

Job summary

Lokki Henkilöstöpalvelut Oy is seeking a Senior Android Developer for a banking-sector client in Finland. You will design, implement and maintain Android apps using Kotlin and Jetpack Compose, and migrate legacy UI to Compose while refactoring UI components.

You will drive frontend best practices and test automation, collaborating with designers, backend engineers, QA, architects and business experts to deliver customer-centric mobile solutions. Fluent English required.

Qualifications

• Strong professional experience with Kotlin.
• Strong hands-on experience with Jetpack Compose.
• Solid experience in Android application development.
• Strong experience with Git.
• Good working knowledge of Java.
• Experience working with IntelliJ IDEA.
• Good working knowledge of Gradle.
• Material Design.
• View/XML-based Android UI development.
• Experience with Espresso and automated UI testing.

Responsibilities

• Design, implement, and maintain high-quality Android applications using Kotlin and Jetpack Compose.
• Lead and contribute to the modernization of existing applications by migrating legacy UI to Compose and updating UI components.
• Drive frontend engineering best practices, ensuring maintainable, scalable, and reusable mobile solutions.
• Develop and maintain automated UI tests using Espresso and improve test automation coverage.
• Create and maintain unit tests and other verification activities to ensure quality and reliability.
• Collaborate with designers, backend developers, QA engineers, architects, and business experts to deliver customer-centric mobile solutions.

Skills

Kotlin

Jetpack Compose

Android development

Git

Java

IntelliJ IDEA

Gradle

Material Design

View/XML-based UI

Espresso testing

Tools

IntelliJ IDEA

Gradle

Job description

For our client in the banking sector, we are looking for a Senior Android Developer.

What youll be doing:

• Design, implement, and maintain high-quality Android applications using Kotlin and Jetpack Compose
• Lead and contribute to the modernization of existing applications by migrating legacy View-based UI implementations to Compose – Refactor and update custom-built UI components to align with standardized design system and UI component libraries
• Drive frontend engineering best practices, promoting maintainable, scalable, and reusable mobile solutions
• Develop and maintain automated UI tests using Espresso and contribute to improving overall test automation coverage
• Create and maintain unit tests and other verification activities to ensure application quality and reliability
• Participate in feature design, implementation, testing, release activities, and ongoing maintenance – Analyse application behaviour, troubleshoot issues, and support continuous improvements to performance, stability, and user experience
• Collaborate closely with designers, backend developers, QA engineers, architects, and business experts to deliver customer-centric mobile solutions

Must-have knowledge and experience:

• Strong professional experience with Kotlin
• Strong hands‑on experience with Jetpack Compose
• Solid experience in Android application development
• Strong experience with Git
• Good working knowledge of Java
• Experience working with IntelliJ IDEA
• Good working knowledge of Gradle Nice‑to‑have knowledge and experience
• Material Design
• View/XML-based Android UI development
• Experience with Espresso and automated UI testing

Location: Oulu preferred; Helsinki can also be considered. Hybrid work with 2–3 days per week on-site.
Allocation: 100 %
Start date: As soon as possible
End date: 31.3.2027, possible extension
Language: Fluent in English

We offer you: We offer a versatile assignment where every day is different and interesting. We also offer a very competitive salary and good employee benefits.

Employment relationship: Commission
Wage: Other
Number of positions: 1
Source: Job Market Finland/Työmarkkinatori

Osaamisalue: IT & tietoliikenne